Initial import

diff --git a/LICENSE.md b/LICENSE.md
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+++ b/LICENSE.md
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+Copyright (c) 2015-present Greg Hurrell
+
+# MIT License
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

diff --git a/package.json b/package.json
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+++ b/package.json
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+{
+  "name": "dented",
+  "version": "0.0.1",
+  "description": "Indenting and dedenting utilities",
+  "main": "src/index.js",
+  "files": [
+    "src/dedent.js",
+    "src/indent.js",
+    "src/index.js"
+  ],
+  "repository": "https://github.com/wincent/dented",
+  "author": "Greg Hurrell <greg@hurrell.net>",
+  "license": "MIT",
+  "private": false
+}

diff --git a/src/dedent.js b/src/dedent.js
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+/**
+ * @flow strict
+ */
+
+/**
+ * Tagged template literal function that trims leading and trailing whitespace
+ * and reduces the indent level back to column 0.
+ */
+function dedent(
+  strings /*: Array<string> */,
+  ...interpolations /*: Array<mixed> */
+) {
+  // Insert interpolations in template.
+  const output = strings.reduce((acc, string, i) => {
+    if (i < interpolations.length) {
+      return acc + string + String(interpolations[i]);
+    } else {
+      return acc + string;
+    }
+  }, '');
+
+  // Collapse totally blank lines to empty strings.
+  const lines = output.split('\n').map(line => {
+    if (line.match(/^\s+$/)) {
+      return '';
+    } else {
+      return line;
+    }
+  });
+
+  // Find minimum indent (ignoring empty lines).
+  const minimum = lines.reduce((acc, line) => {
+    const indent = line.match(/^\s+/);
+    if (indent) {
+      const length = indent[0].length;
+      return Math.min(acc, length);
+    }
+    return acc;
+  }, Infinity);
+
+  // Strip out minimum indent from every line.
+  const dedented = lines.map(line =>
+    line.replace(new RegExp(`^${' '.repeat(minimum)}`, 'g'), ''),
+  );
+
+  // Trim first and last line if empty.
+  if (dedented[0] === '') {
+    dedented.shift();
+  }
+  if (dedented[dedented.length - 1] === '') {
+    dedented.pop();
+  }
+  return dedented.join('\n');
+}
+
+module.exports = dedent;

diff --git a/src/indent.js b/src/indent.js
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+++ b/src/indent.js
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+/**
+ * @flow strict
+ */
+
+/**
+ * Indent every line (except for empty lines) by `count` spaces.
+ */
+function indent(text /*: string */, count /*: number */ = 2) {
+  return text
+    .split('\n')
+    .map(line => {
+      if (line.length) {
+        return `${' '.repeat(count)}${line}`;
+      } else {
+        return line;
+      }
+    })
+    .join('\n');
+}
+
+module.exports = indent;

diff --git a/src/index.js b/src/index.js
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+++ b/src/index.js
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+/**
+ * @flow strict
+ */
+
+const dedent = require('./dedent');
+const indent = require('./indent');
+
+module.exports = {
+  dedent,
+  indent,
+};